KR20230007380A - Dispenser with mechanical transmission and method - Google Patents

Abstract

A dispenser for dispensing rolls of material is disclosed. The dispenser includes a rear housing and an openable cover. The rear housing includes a roll transfer device for transferring a roll of material from a first dispensing location to a second dispensing location. The roll transfer device includes a transfer latch engageable with and disengaged from the transfer disk and a transfer arm engaged with the transfer disc to facilitate movement of the roll of material from the first dispensing position to the second dispensing position. Also disclosed is a method of exchanging rolls of material in a dispenser.

Description

Dispenser with mechanical transmission and method

The present invention relates to a dispenser having a mechanical delivery and method.

Toilet tissue dispensers are known that dispense rolls of toilet tissue. In commercial toilets, many toilet dispensers are suitable for dispensing oversized or jumbo material rolls. These jumbo rolls typically have a diameter of about 20 to 30 cm. To minimize the frequency of roll changes, dispensers for oversized or jumbo rolls of toilet tissue are commonly provided in commercial establishments. Even if replacement intervals are extended, the placement and replacement of partially spent rolls, i.e., stub rolls, remains a problem.

For example, when servicing a dispenser containing an oversized roll of material, service personnel must enter the bathroom stall with a key to open the new bathroom tissue roll and dispenser. After opening the dispenser, the service personnel must move the partially used stub roll out of its primary position before loading a new full roll. Also, service personnel may need to remove previously dispensed cores. Given the sheer size of these rolls, it would be difficult, if not impossible, for service personnel to perform these actions while holding a new full roll. In this case, it is not desirable to put the new roll on the toilet or toilet floor for hygiene reasons.

In view of the above, there is a need for a dispenser capable of replacing a used roll of material with a new roll of material which can be achieved without exposing the new roll of material to contamination.

Generally, the present invention relates to a dispenser that can facilitate easy removal of a stub roll and installation of a new roll of material. In one embodiment, the dispenser includes a housing having a rear housing and an openable cover defining an interior of the housing. The interior of the housing is configured to receive a roll of material having a diameter. The material rolls may include oversized or jumbo material rolls. The rear housing includes a backplate to be mounted to a mounting surface such as the stall wall of a commercial toilet. The interior of the housing is configured to receive and hold the roll of material at the first dispensing position and the second dispensing position. The dispenser further includes a roll delivery device. When the diameter of the material roll reaches the delivery diameter size, the roll transfer device facilitates movement of the material roll from the first dispensing position to the second dispensing position.

Certain embodiments provide a roll transfer device that includes a transfer arm configured to hold a roll of material in a first dispensing position. The transfer arm includes a first end having a transfer arm roller configured to engage the material roll and a second end to engage the transfer disk. The delivery device also includes a delivery latch having a first end configured to engage the delivery disk. When the diameter of the roll of material reaches a certain delivery diameter size, the second end of the delivery arm causes the delivery latch to disengage from the delivery disk to facilitate movement of the roll of material from the first dispensing position to the second dispensing position. into engagement with the first end of the transfer latch. The transfer disk includes a notch configured to securely engage the transfer latch when the jumbo roll is in the first dispensing position. The transmission disk also includes a spring engagement mechanism configured to be secured to a tension spring located on a depression on the rear side of the rear housing. The transmission disk also includes a transmission disk projection configured to engage a transmission disk control slot located in the back plate of the rear housing. When the hook is released from the notch, the tension spring rotates the transfer disc to an extent acceptable by the transfer disc control slot, which urges the transfer arm roller against the material roll, moving the material roll from the first dispensing position to the second dispensing position. make it easier to move to The delivery disk and delivery latch may be firmly attached to a first side of a backplate that generally forms the interior of the housing and faces it.

In some embodiments, the dispenser includes one or more rollers and a ramp configured to facilitate movement of a roll of material from a first position to a second position. The ramp may have an opening to dispense material from the jumbo roll. The ramp generally includes a first end positioned closer to the material roll at the first dispensing position and a second end positioned closer to the material roll at the second dispensing position. The first end of the ramp is elevated relative to the second end of the ramp to permit gravity to further facilitate movement of the roll of material from the first dispensing position to the second dispensing position.

In certain embodiments, the material roll may be supported by the stub roll support base and the upper stub roll support member when the material roll is in the second dispensing position.

The housing of the dispenser may also include an access opening configured to allow a user to access the sheet of material from the roll of material. The access opening may define a perimeter having one or more tear members positioned along at least a portion of the perimeter. The tear member can facilitate tearing of the material from the jumbo roll so that it can be utilized by the end user. The material roll may include a jumbo roll of toilet tissue.

In an embodiment, the dispenser includes a locking mechanism for locking the openable cover to the rear housing. The openable cover may be attached to the rear housing via a hinge.

Also provided herein is a method of installing or replacing a roll of material from a dispenser.

Other features and aspects of the present invention are described in more detail below.

The present invention will be described more fully and in detail in the remainder of the specification with reference to the accompanying drawings.
1 is a perspective view of one embodiment of a dispenser according to the present invention, the dispenser's openable cover not shown;
2 is a perspective view of one embodiment of a dispenser having an openable cover in a closed position according to the present invention;
3 is an exploded view of one embodiment of a transfer arm according to the present invention;
4 is an exploded view of one embodiment of a delivery disk according to the present invention;
5 is an exploded view of one embodiment of a transfer latch according to the present invention;
6 is a plan view of one embodiment of the rear side of a dispenser according to the present invention;
7 is a perspective view of one embodiment of the rear side of a dispenser according to the present invention;
8 is a perspective view of one embodiment of the interior bottom of a dispenser according to the present invention;
9 is a perspective view of one embodiment of the bottom of a dispenser according to the present invention;
10 is a plan view of one embodiment of a bin dispenser according to the present invention;
11 is a plan view of one embodiment of a dispenser having a roll of material in a first dispensing position loaded therein in accordance with the present invention;
12 is a plan view of one embodiment of a dispenser having a roll of material in a first dispensing position loaded therein in accordance with the present invention;
13 is a plan view of one embodiment of a dispenser having a roll of material exiting a first dispensing position in accordance with the present invention;
14 is a plan view of one embodiment of a dispenser having a roll of material exiting a first dispensing position in accordance with the present invention;
15 is a plan view of one embodiment of a dispenser having a roll of material in a second dispensing position according to the present invention;
16 is a plan view of one embodiment of a dispenser having a roll of material and an empty core in a rear housing in a second dispensing position according to the present invention;
17 is a perspective view of one embodiment of a dispenser having a roll of material and an empty core in a rear housing in a second dispensing position according to the present invention.
Repeat use of reference characters in the specification and drawings is intended to represent the same or analogous features or elements of the invention.

Those skilled in the art will appreciate that this description is intended to describe exemplary embodiments only and is not intended to limit the broader aspects of the invention.

The present invention relates generally to a dispenser for rolls of material. More specifically, the dispenser relates to a dispenser that includes a roll transfer device for moving a roll of material from a first dispensing position to a second dispensing position. Moving the roll of material from the first dispensing position to the second dispensing position makes it easier for toilet attendants to install or replace the jumbo roll of material in the dispenser. When the material roll is positioned at the second dispensing position, the first dispensing position is available to receive the new material roll. Thus, when toilet attendants open the cover of the dispenser, they can easily insert a new roll of material at the first dispensing position without having to first remove the partially used roll, also called a stub roll. For other dispensers that require the stub roll to be removed first, the washroom attendant must place the new roll of material on the surface of the toilet. This is undesirable as it can introduce contaminants into the fresh material roll. However, the disclosed dispenser eliminates the need to seat a new roll of material during removal of the stub roll from the dispenser. Additionally, the dispenser disclosed herein allows for easier replacement of partially used rolls, which can save toilet attendants time. In commercial toilets with multiple jumbo roll dispensers, the time to inspect and replace partially used rolls can be greatly reduced, allowing toilet staff to inspect commercial toilets more efficiently.

The disclosed dispenser also includes a first dispensing location and a second dispensing location, which can assist in removing waste in the form of unused product, such as toilet paper, which may be on partially used rolls. For example, many known jumbo roll dispensers have only one dispensing location for a roll of material. Thus, when using the known dispenser, the washroom attendant must remove the partially used roll in order to re-feed the dispenser with a new roll of material. Unused material from stub rolls creates product waste and economic loss. In certain situations where the partially used roll still contains a significant amount of material, the toilet attendant must decide whether to replace the partially used roll. In situations where the partially used roll is not removed, the roll may be completely exhausted before the toilet attendant retrieves the partially used roll to replace it with a new one. It is undesirable to have a completely depleted roll because there is no product available to the user. However, the present dispenser eliminates this problem. For example, when the roll reaches a certain diameter, the product transfer device automatically transfers the partially used roll to the second dispensing position. Product can still be dispensed from the second location, and the toilet attendant is free to provide a new roll of material at the first dispensing location. Thus, the material can be completely removed from the partially used roll at the second dispensing position, and then the product can be accessed from the roll at the first dispensing position.

In one embodiment, the dispenser includes a rear housing and an openable cover defining an interior of the housing. The interior of the housing is configured to receive a roll of material having a diameter. The rear housing includes a backplate configured to be mounted to a mounting surface. The interior of the housing is configured to receive and hold the roll of material at the first dispensing position and the second dispensing position. The dispenser also includes a roll delivery device. A roll transfer device is located within the inner housing. When the diameter of the material roll reaches the delivery diameter size, the roll transfer device facilitates movement of the material roll from the first dispensing position to the second dispensing position. The roll transfer device includes a transfer arm configured to hold the jumbo roll in a first dispensing position. The transfer arm includes a first end having a transfer arm roller configured to engage the material roll and a second end to engage the transfer disk. The roll transfer device also includes a transfer latch having a first end comprising a hook configured to engage the transfer disk. When the roll of material reaches the delivery diameter size, the second end of the delivery arm engages the delivery latch to disengage the hook from the delivery disk to facilitate movement of the roll of material from the first dispensing position to the second dispensing position.

Referring in particular to FIGS. 1-2 and 6-10 , various embodiments of a dispenser 10 made in accordance with the present invention are shown. As shown in FIGS. 1-2 , the dispenser 10 includes a rear housing 12 that includes a backplate 18 . The dispenser 10 also includes an openable cover 14 to form a housing having a housing interior 16 to hold at least one roll of material rolls 20 in said bag. It surrounds at least part of the plate 18. The dispenser 10 may be mounted to a mounting surface such as a toilet wall or a toilet stall. Dispenser 10 may be mounted to a mounting surface via any suitable mechanism.

The dispenser 10 may include a rear housing 12 and an openable cover 14 which may have any desired overall shape. Dispenser 10 may include a two-part construction. For example, the dispenser 10 may include a rear housing 12 and an openable cover 14 . The openable cover 14 may be pivotally mounted to the rear housing 12 using any suitable means. For example, in one embodiment, a hinge may be used to connect the openable cover 14 to the rear housing 12. Alternatively, the openable cover 14 may be completely separated from the rear housing 12 . The openable cover 14 generally defines the front face 15 and at least a portion of the sidewall 19 of the dispenser 10, while the rear housing 12 defines the rear of the dispenser 10. In some embodiments, sidewall 19 may be completely defined by openable cover 14 . In some embodiments, rear housing 12 may also define at least a portion of sidewall 19 of dispenser 10 . In some embodiments, the side wall may be completely defined by the rear housing 12 . In other embodiments, sidewall 19 may be completely defined by openable cover 14 . In some embodiments, the openable cover 14 may have sidewalls that cooperate with the sidewalls of the rear housing 12 . The openable cover 14 may be in a closed or open position. The openable cover 14 may form at least part of the top wall 13 of the dispenser 10 . As shown in FIG. 2 , the openable cover 14 covers the interior of the dispenser 10 as it is in the closed position. The rear housing 12 and the openable cover 14 may define a housing interior 16 for accommodating the working components of the dispenser 10 as well as rolls of sheet material to be dispensed, including material rolls 20. . In some embodiments, the rear housing 12 may also form at least a portion of the bottom 21 or bottom surface of the dispenser 10 .

The openable cover 14 defines at least a portion of the housing interior 16 . In certain embodiments, the openable cover 14 is a locking mechanism configured to lock the openable cover 14 to the rear housing 12 such that product contained within the dispenser cannot be accessed without being engaged with the locking mechanism. can include (not shown). For example, the lock mechanism may be a lock configured to be opened with a key. Thus, the contents of the housing interior 16 cannot be accessed without a key. A particular toilet attendant checking the toilet may have a key to access the dispenser 10 .

The dispenser 10 also includes a roll transfer device 40 generally located inside the housing 16 . The roll transfer device 40 may include a transfer arm 50 , a transfer disk 60 , and a transfer latch 70 . Elements of the roll transfer device 40 may be attached to the first side 130 of the backplate 18 in any suitable manner. Exploded views of the transfer arm 50, the transfer disk 60, and the transfer latch 70 are shown in FIGS. 3-5. The transfer arm 50 can include a first end 52 and a second end 54 . The transfer arm 50 includes a transfer arm roller 53 positioned generally along a first end 52 of the transfer arm 50 . The transfer arm roller 53 is configured to engage at least a portion of the surface of the material roll 20 when the material roll 20 is in the first dispensing position 22 within the dispenser 10 . Transmission arm 50 also includes a second end 54 configured to rigidly engage transmission disk 60 . The delivery arm 50 may be rigidly attached to the delivery disk via any suitable mechanism. The transfer arm 50 also includes a transfer arm pivot 56 and a transfer arm torsion spring 57 generally positioned about the second end 54 of the transfer arm 50 . The transfer arm pivot 56 and transfer arm torsion spring 57 allow movement of the transfer arm 50 about the transfer arm pivot 56 as the diameter of the material roll 20 changes. A transfer arm torsion spring 57 holds the transfer arm roller 53 against the material roll 20 . As the product is dispensed, the transfer arm roller 53 is held engaged with the material roll 20 via the transfer arm torsion spring 57. In addition to tracking with the material roll 20, as the material is dispensed, the transfer arm roller 53 applies light pressure to the material roll 20, which helps reduce product overspin during roll dispensing.

The delivery disk 60 includes a first side 62 and a second side 63 . The first side 62 generally faces the housing interior 16 and the second side 63 of the transmission disk 60 generally faces the back plate 18 of the rear housing 12 . The first side 62 of the transfer disk 60 includes a transfer arm engagement member 66 having a jumbo roll engagement surface 64 thereon. Transmission arm engagement member 66 is configured to engage and secure at least a portion of transmission arm 50 to transmission disk 60 . Transmission arm 50 may be secured to transmission arm engagement member 66 via any suitable mechanism. The jumbo roll engagement surface 64 is also configured to engage at least a portion of the material roll 20 when the material roll 20 is in the first dispensing position 22 . The delivery disk 60 also includes a notch 65 . Notch 65 is configured to engage transfer latch 70 . In some embodiments, notch 65 engages transfer latch 70 when material roll 20 is in first dispense position 22 . The second side 63 of the transmission disk 60 includes a spring engagement mechanism 67 and a transmission disk protrusion 68 . The spring engagement mechanism 67 is configured to engage a tension spring 82 located around the second side 131 of the back plate. The transmission disk protrusion 68 is configured to mate with a transmission disk control slot 84 also located on the back plate 18 of the rear housing 12 .

The transfer latch 70 includes a first end 72 and a second end 73 . The first end 72 of the transfer latch 70 is configured to engage the transfer disk 60 . The first end 72 includes a transmission disk engagement mechanism configured to releasably attach the first end 72 of the transmission latch 70 to the transmission disk 60 . Any suitable transmission disc engagement mechanism may be used. For example, as shown, first end 72 of transfer latch 70 may include a hook 74 . Hook 74 is configured to engage notch 65 of delivery disk 60 when material roll 20 is in first dispensing position 22 . In other embodiments, the transmission disk engagement mechanism may include a flange or protrusion configured to engage a notch 65 in the transmission disk 60 . In yet other embodiments, the transmission disk engagement mechanism may include a groove configured to engage a surface or flange located on the transmission disk 60 . The transmission disk engagement mechanism may include any releasable engagement mechanism, such as a member, protrusion, flange, or the like configured to engage and releasably secure transmission latch 70 to transmission disk 60 . The transfer latch 70 also includes a transfer latch pivot 75 and a transfer latch torsion spring 76 generally positioned about the second end 73 of the transfer latch 70 . The transfer latch pivot 75 and the transfer latch torsion spring 76 allow movement of the transfer latch 70 about the pivot 75 as the diameter of the material roll 20 changes. Transmission latch 70 is held in engagement with transmission disk 60 via transmission latch torsion spring 76 and via transmission disk notch 65 .

As shown in Figure 6, the rear housing 18 has a second side 131 corresponding to the side that generally faces the mounting surface when in the mounting position. Also, as shown in FIGS. 6-7 , the back plate 18 may generally have a depression 171 for accommodating a tension spring 82 . As shown, at least some of the depressions 171 may include holes to allow one end of the tension spring 82 to engage the transmission disc spring engagement mechanism 67 of the transmission disc 60 . In certain embodiments, as shown in FIGS. 6-7 , transmission disc spring engagement mechanism 67 may include an opening capable of receiving and retaining a hooked or curved portion of tension spring 82 . there is. Accordingly, the transmission disc spring engagement mechanism 67 retains at least one end of the tension spring 82 when the tension spring 82 is in the extended position and also when the tension spring 82 is in the less extended or non-extended position. It can be any suitable instrument that can be used.

As shown in FIGS. 6-7 , the backplate 18 may include a transfer disc control slot 84 . The transfer disc control slot 84 is generally shaped to receive and engage the transfer disc protrusion 68. As shown, the transfer disc control slot 84 has a first end 160 and a second end 162 . The first end 160 engages the delivery disk protrusion 68 when the material roll 20 is in the first dispensing position 22 . For example, when the hook 74 of the transmission latch 70 is securely engaged with the notch 65 of the transmission disk 60, the transmission disk protrusion 68 is generally at the first end 160 of the control slot. It is fixed. When the second end 54 of the transmission arm 50 pushes the hook 74 of the transmission latch 70 out of engagement with the notch 65 of the transmission disk, the energy stored in the tension spring 82 is transferred to the transmission disk 60. ) will rotate. However, when the transmission disk protrusion 68 reaches the second end 162 of the transmission disk control slot 84, rotation of the transmission disk 60 is stopped.

Referring to FIG. 8 , dispenser 10 is also positioned along the bottom of housing interior 16 to facilitate movement of material roll 20 from first dispensing location 22 to second dispensing location 24 . It includes one or more rollers 90. As shown in FIG. 8 , the dispenser 10 also includes a lamp 100 having a lamp opening 102 . Material from material roll 20 may be dispensed through ramp opening 102 . Ramp 100 may be positioned between one or more rollers 90 . The ramp opening 102 can also be positioned over the housing access opening 120 so that product can be dispensed from the housing access opening 120 . Lamp 100 has a first end 104 and a second end 106 . The first end 104 is closer to the material roll 20 when in the first dispensing position 22 . The second end 106 of the ramp 100 is closer to the material roll 20 when in the second dispensing position 24 . The first end 104 is elevated relative to the second end 106 to facilitate movement of the material roll 20 from the first dispensing position 22 to the second dispensing position 24 . Once the partially depleted roll is at the top of the ramp 100, the inclination of the ramp 100 will facilitate moving the partially depleted material roll 20 to the second dispensing position 24.

Referring now to FIG. 9 , the dispenser 10 includes a housing access opening 120 having a housing access opening periphery 121 . The housing access opening 120 may have one or more tear members 122 positioned around the housing access opening periphery 121 to facilitate tearing and removal of the product of material forming the jumbo roll. In some embodiments, one or more of the tear members 122 may include serrated molded plastic teeth suitable for separating the material product from the material roll 20 .

As shown in FIG. 10 , the dispenser 10 includes a housing interior 16 capable of holding a roll of material 20 at a first dispensing position 22 and a second dispensing position 24 . The dispenser of FIG. 10 is empty and does not have a material roll 20 inserted therein. 10-17 show the movement of material roll 20 from a first dispensing position 22 to a second dispensing position 24 . Referring to FIG. 11 , when the toilet attendant loads a new roll of material into the dispenser 10, the transfer arm 50 must be fully moved in the direction of the arrow X, which stretches the tension spring 82 and locks the transfer latch ( 70 engages notches 65 in transmission disk 60 to hold transmission disk 60 in place and store energy in tension spring 82 . As shown, a portion of material roll 20 may be placed on one or more rollers 90 to assist in the removal of product from material roll 20 . The material roll 20 generally has a diameter "D" that decreases as product is removed from the roll. As shown, when the material roll 20 is in the first dispensing position 22 , the transfer arm roller 53 also contacts the material roll 20 when in the first dispensing position.

Referring now to FIG. 12 , transfer arm 50 moves in the direction of arrow A as transfer arm 50 and transfer arm roller 53 track as product roll decreases. Movement of the transfer arm 50 in the direction of arrow A causes the second end 54 of the transfer arm 50, which extends over the transfer arm pivot 56, to move in the direction of arrow B, which is the transfer latch 70. ) gradually disengage from the transfer disk 60. When the material roll 20 reaches the delivery diameter size, the second end 54 of the delivery arm 50 will move the delivery latch 70 into full disengagement from the delivery disk 60 . See Figure 13. Once the transfer latch 70 is separated from the transfer disk 60, the tension spring 82 can return its stored energy to the transfer device system, thereby disengaging the transfer disc protrusion 68 and the transfer disc control slot 84. Rotate the transfer disk 60 to the degree allowed by Releasing tension spring 82 forces transfer arm 50 against partially depleted roll of material 20, as shown in FIGS. Drive up, up and up.

Once the material roll 20 is placed on the ramp 100, the ramp will facilitate movement of the material roll 20 to the second dispensing position 24 as shown in FIGS. 14-15. The dispenser 10 also includes a stub roll support base 110 and an upper stub roll support member 112 configured to engage and secure the material roll 20 at the second dispensing position 24 . In certain embodiments, the edges of the ramp 100 are such that the material roll 20 at the second dispensing position 24 is a stub including a stub roll support base 110 and an upper stub roll support member 112. It serves to prevent pulling from the roll support.

As shown in Figures 11-16, material roll 20 has a diameter generally indicated as "D". For certain rolls of material, known as large rolls or jumbo rolls, the initial diameter "D" of the complete unused roll may be from about 15 cm to about 35 cm, such as from about 17 cm to about 32 cm. Once the diameter "D" of the material roll 20 reaches the delivery diameter size, the roll delivery device facilitates moving the material roll 20 from the first dispensing position 22 to the second dispensing position 24. do. In certain embodiments, the delivery diameter may range from about 5 cm to about 25 cm, such as from about 10 cm to about 17 cm.

Referring now to FIGS. 16-17 , the dispenser 10 shows that the empty core 155 from the roll of material 20 will pass through the back section 150 by the time service personnel arrive to inspect the dispenser 10 . It may also include a rear section 150 defining an opening or space sufficient to permit storage thereon. For example, material roll 20 may include sheet(s) of material wound around a core, such as a paperboard core. Dispenser 10 can automatically move material roll 20 from a first dispensing position 22 to a second dispensing position 24 . It is contemplated that the toilet attendant may insert a fresh or new roll of material 20 into the first dispense location 22 without removing the remaining roll of material located at the second dispense location 24 . Once the roll of material is exhausted at the second dispensing location 24, it can remain at the second dispensing location while material is removed from the new roll of material 20 at the first dispensing location 22. However, when the roll of material at the first dispensing position 22 reaches a certain delivery diameter, the roll delivery device 40 moves the roll of material to the second dispensing position 24, which currently occupies the second dispensing position. A fully spent core will be pushed into the rear section 150 so that the material roll can be used at the second dispensing position 24 . In this embodiment, the remaining core of a fully used roll of material will not impede the movement of another roll of material from the first dispensing position 22 to the second dispensing position 24 .

One or more fasteners may be used to secure the rear housing 12 to a mounting surface, such as the interior wall of a toilet stall. Indeed, the backplate 18 of the rear housing 12 may include one or more openings configured to receive fasteners for securing the rear housing 12 to a mounting surface. A fastener may include any hardware device that attaches two or more objects by mechanically joining them together. Fastener(s) may be used to couple rear housing 12 to a mounting surface with brackets positioned on the mounting surface. The fastener(s) may include those capable of creating a non-permanent joint, ie the joint may be removed or disassembled without damaging the joined components. Accordingly, the selected fastener(s) may be used to removably couple the rear housing 12 to the mounting surface. Any suitable fastener may be used. Suitable fasteners include, but are not limited to, anchors, bolts, nails, nuts, pins, clip rivets, rods, screws, clamps, washers, and combinations thereof. In one embodiment, the fastener(s) include screws.

The present dispenser 10 may be used to hold any material stored on or dispensed from a roll, including but not limited to toilet paper, paper towels, hand towels, plastic materials, and the like. In certain embodiments, the material roll comprises a jumbo roll of toilet paper or toilet tissue. In many embodiments, the roll of material includes a core, but it is contemplated that the present invention may also be used with coreless or small core products.

Also, accessing the inside of the housing, placing a roll of material in a first dispensing position, removing a partially spent material roll (i.e., a stub roll) or core from a fully spent material roll from a second position; and securing the openable cover to the rear housing. A method for replacing a roll of material or inserting a roll of material into the dispenser is provided. The method further includes placing the roll of material on the transfer arm roller and moving the transfer arm such that the hook of the transfer latch engages a notch in the transfer disk.

Those skilled in the art may implement these examples and other modifications and variations of the invention without departing from the spirit and scope of the invention as more specifically set forth in the claims. Also, it should be understood that aspects of the various embodiments may be interchanged in whole or in part. Moreover, those skilled in the art will appreciate that the above description is by way of example only and is not intended to limit the invention further described in these claims.

Claims (22)

A dispenser for dispensing rolls of material, said dispenser comprising:
A housing comprising a rear housing and an openable cover defining an interior of the housing configured to receive a roll of material having a diameter, the rear housing having a backplate configured to be mounted to a mounting surface, the interior of the housing having a first dispensing position. and a housing configured to receive and hold the roll of material in the second dispensing position;
A roll transfer device comprising a transfer arm configured to hold the roll of material in a first dispensing position, the transfer arm having a first end having a transfer arm roller configured to engage the roll of material and a second end engaging the transfer disk. A roll delivery device comprising a, and
a transfer latch having a first end configured to releasably engage the transfer disk;
wherein when the diameter of the roll of material reaches the delivery diameter size, the second end of the delivery arm engages the delivery latch such that the first end of the delivery latch disengages from the delivery disk and the first dispensing position to the delivery latch. 2 Dispenser, to facilitate movement of the roll of material to the dispensing position. 2. The method of claim 1 , wherein the second end of the transfer arm comprises a transfer arm pivot having a transfer arm torsion spring configured to allow movement of the transfer arm about the pivot as the diameter of the roll of material changes. divider. 2. The method of claim 1 wherein the first side of the transfer disk has a support having a transfer arm engagement surface configured to engage a surface of the transfer arm and a jumbo roll engagement surface configured to engage a jumbo roll when in the first dispensing position. Including, the dispenser. The dispenser of claim 1 , wherein the first end of the transfer latch includes a transfer disk engagement mechanism. 5. The dispenser of claim 4, wherein the transfer disc engagement mechanism comprises a hook. 6. The dispenser of claim 5, wherein the delivery disk includes a notch, wherein the notch is configured to securely engage the hook when the jumbo roll is in the first dispensing position. 2. The transmission disk of claim 1, wherein the transmission disk includes a second side facing the backplate, wherein the transmission disk second side is configured to be secured to a tension spring located on a depression on the rear side of the backplate. A dispenser comprising a spring engagement mechanism and further wherein the second side of the transmission disk comprises a transmission disk protrusion configured to engage a transmission disk control slot located in the backplate. 7. The method of claim 6 wherein, when the hook is disengaged from the notch, the tension spring forces the transfer arm roller against the roll of material by rotating the transfer disc to an extent acceptable by the transfer disc control slot, thereby urging the control slot to force the transfer arm roller against the material roll. The dispenser is configured to facilitate movement of the material roll from the first dispensing position to the second dispensing position. The dispenser of claim 1 , wherein the dispenser further comprises one or more rollers configured to facilitate moving the roll of material from the first position to the second position. 10. The dispenser of claim 9, further comprising a ramp positioned between the one or more rollers, the ramp having an opening configured to allow dispensing of material from the jumbo roll. 11. The method of claim 10, wherein the ramp has a first end positioned closer to the material roll at the first dispensing position and a second end positioned closer to the material roll at the second dispensing position, wherein the first end is positioned closer to the material roll. wherein one end is raised compared to the second end to facilitate movement of the roll of material from the first dispensing position to the second dispensing position. The dispenser of claim 1 , further comprising a stub roll support base and an upper stub roll support member configured to hold the jumbo roll in the second dispensing position. The dispenser of claim 1 , wherein the delivery diameter size is from about 10 cm to about 17 cm. The dispenser of claim 1 , wherein the housing includes an access opening configured to allow a user to access the sheet of material from the roll of material. 15. The dispenser of claim 14, wherein the access opening has a perimeter, wherein one or more tear members extend along at least a portion of the perimeter. The dispenser of claim 1 , wherein the material roll comprises a toilet paper jumbo roll. 2. The backplate of claim 1, wherein the backplate includes a first side facing the interior of the housing and a second side facing the mounting surface, wherein the transmission latch and transmission disk are securely attached to the first side of the backplate. composed of dividers. The dispenser of claim 1 , wherein the dispenser includes a locking mechanism for locking the openable cover to the rear housing. The dispenser of claim 1 wherein the openable cover is hingedly attached to the rear housing. The dispenser of claim 1 , further comprising a rear section configured to retain the empty core from the roll of material. A method of replacing a roll of material from the dispenser of claim 1 comprising:
accessing the interior of the housing;
placing the roll of material at a first dispensing location;
removing the core from a partially spent material roll or a fully spent material roll from a second location; and
Securing the openable cover to the rear housing. 22. The method of claim 21, wherein placing the roll of material at the first dispensing position comprises placing the roll of material on the transfer arm roller and rotating the transfer disk so that the hook of the transfer latch locks the transfer disk. and engaging the notch of a.

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